Diagnostic Trouble Code (DTC) Information
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Condition
Diagnostic trouble code (DTC) ECC-431 or ECC-432 is stored if the control module detects that the signal from the blower fan switch is faulty, depending on the fault.
Substitute Value
The control module adopts a substitute value so that the blower fan only runs at one speed.
Possible Source
- Defective blower fan switch, control module.
Fault symptom[s]
- The orange indicator LED in the REC and air conditioning (A/C) buttons flashes for approximately 20 seconds.
- The blower fan runs at one speed.